palmar arch

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Related to palmar arch: radial nerve, median nerve

pal·mar arch

(pahl'măr ahrch)
1. Deep palmar arch; the arterial arch located deep to the long flexor tendons in the hand, formed by the radial artery and the deep palmar branch of the ulnar artery.
Synonym(s): arcus palmaris profundus [TA] .
2. Superficial palmar arch; the arterial arch in the hand located superficial to the long flexor tendons, formed principally by the ulnar artery and usually completed by a communication with the superficial palmar branch of the radial artery.
Synonym(s): arcus palmaris superficialis [TA] .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(arch) [L. arcus, a bow]
An anatomical structure having a curved or bowlike outline. See: arcus

abdominothoracic arch

The anterior and lateral boundary between the line dividing the thorax and the abdomen.
Synonym: costal arch

alveolar arch

The arch of the alveolar process of either jaw (maxillary and mandibular arch).

aortic arch

Any of a series of six pairs of vessels that develop in the embryo and connect the aortic sac with the dorsal aorta. During the fifth to seventh weeks of gestation, the arches undergo transformation, some persisting as functional vessels, others persisting as rudimentary structures, and some disappearing entirely.

axillary arch

An anomalous muscular slip across the axilla, between the pectoralis major and latissimus dorsi muscles.

branchial arch

Any of five pairs of arched structures that form the lateral and ventral walls of the pharynx of the embryo. The first is the mandibular arch; the second is the hyoid arch; the third, fourth, and fifth arches are transitory. They are partially separated from each other externally by the branchial clefts and internally by the pharyngeal pouches. They are important in the formation of structures of the face and neck.
Synonym: pharyngeal arch

carotid arch

The third aortic arch, which provides the common carotid artery.

costal arch

Abdominothoracic arch.

crural arch

The inguinal ligament, which extends from the anterior superior iliac spine to the pubic tubercle. Synonym: Poupart's ligament

deep crural arch

A band of fibers arching in front of the sheath of femoral vessels; the downward extension of the transversalis fascia.

deep palmar arch

An arch formed in the palm by the communicating branch of the ulnar and the radial artery.

dental arch

The arch formed by the alveolar process and teeth in each jaw (maxillary and mandibular arch). Synonym: arcus dentalis

arch of foot

Any of the four vaulted structures in the foot: the internal (medial) longitudinal, the outer (lateral) longitudinal, and two transverse.

glossopalatine arch

The anterior pillar of the fauces; one of two folds of mucous membrane extending from the soft palate to the sides of the tongue.

hemal arch

1. In lower vertebrates, extensions from the lateral areas of the caudal vertebrae that fuse to enclose the caudal artery and vein. In humans these are represented by the costal processes of the vertebrae.
2. An arch formed by the body and dorsal processes of a vertebra.

hyoid arch

The second branchial arch, which gives rise to the styloid process, the stylohyoid ligament, and the lesser cornu of the hyoid bone.

inferior tarsal arch

The arch of the median palpebral artery that supplies the lower eyelid.

longitudinal arch

The anteroposterior arch of the foot; the medial portion is formed by the calcaneus, talus, navicular, the three cuneiform bones, and the first three metatarsals; the lateral portion is formed by the calcaneus, cuboid, and the fourth and fifth metatarsals.

mandibular arch

1. The curved composite structure of natural dentition and supporting tissues of the mandible.
2. The residual bony ridge after teeth have been lost from the mandible.

maxillary arch

The curved composite structure of the natural dentition and supporting tissues of the upper jaw (maxillary and mandibular arch); the residual bony ridge after teeth have been lost from the upper jaw.

nasal arch

An arch formed by the nasal bones and by the nasal processes of the maxilla.

neural arch

Vertebral arch.

palatopharyngeal arch

Pharyngopalatine arch.

palmar arch

See: deep palmar arch; superficial palmar arch

pharyngeal arch

Branchial arch.

pharyngopalatine arch

The posterior pillar of the fauces; one of two folds of mucous membrane extending from the soft palate to the sides of the pharynx. The palatine tonsil lies in the front of the pharyngopalatine and behind the palatoglossal arch. Synonym: palatopharyngeal arch

plantar arch

The arch formed by the external plantar artery and the deep branch of the dorsalis pedis artery.

pubic arch

The arch formed by the rami of the ischia and pubic bones. It forms the anterior portion of the pelvic outlet.

pulmonary arch

The fifth aortic arch on the left side. It becomes the pulmonary artery.

superciliary arch

A curved process of the frontal bone lying just above the orbit, subjacent to the eyebrow, and directly above the supraorbital notch.
Synonym: superciliary ridge

superficial palmar arch

An arch in the palm forming the termination of the ulnar artery.

superior tarsal arch

The arch of the median palpebral artery that supplies the upper eyelid.

supraorbital arch

A bony arch formed by the upper margin of the orbit.

tarsal arch

See: inferior tarsal arch; superior tarsal arch

thyrohyoid arch

The third branchial arch, which gives rise to the greater cornu of the hyoid bone.

transverse arch

The transverse arch of the foot formed by the navicular, cuboid, cuneiform, and metatarsal bones.

vertebral arch

The arch formed by the posterior projection of a vertebra that, with the body, encloses the vertebral foramen. Synonym: neural arch

zygomatic arch

The formation, on each side of the cheeks, of the zygomatic process of each malar bone articulating with the zygomatic process of the temporal bone.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
True aneurysm of the palmar arch. A resection without reconstruction.
(6.) Gull S, Spence RA, Loan W Superficial palmar arch aneurysm after carpal tunnel decompression, a rare complication: a case report.
Deep Palmar Arch: In all the 40 limbs, it was a complete arch.
In one limb the radial artery dipped in 2nd intermetacarpal space and took part in formation of deep palmar arch with superior deep palmar branch of ulnar artery.
Type B: Only the ulnar artery forms superficial palmar arch. The arch is incomplete in the sense that the ulnar artery does not take part in the supply of thumb and index finger.
So only a very small superficial palmer arch develops between persistent median artery and ulnar artery or the radial and ulnar arteries and this superficial palmar arch was insufficient to supply palmar interdigital branches.
The present case showed the palmar type of median artery which did not contribute to the formation of superficial palmar arch. Coleman and Anson classified the superficial palmar arch.
The superficial brachial artery gives off a distal branch which anastomoses with the superficial palmar arch already present.
Normally the median artery retrogresses and the superficial palmar arch is contributed by ulnar artery but in the present case median artery persisted and it gave off two common palmar digital arteries for lateral two and half fingers.
Deep palmar arch patterns in Brazilian individuals.
Anatomic Study of the Palmar Archs: Diameter and Presentation
SUMMARY: The radial artery and unlar artery are the most important arteries of the hand, they form a superficial and deep palmar arches. The detailed description of the anatomic characteristics of the palmar arches have contributed to develop new microsurgical techniques for the hand.